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Io has been divided into 15 quadrangles.[1]
| Name
|
Number
|
Latitude range
|
Longitude range
|
Namesake
|
Features
|
|
|
Ji1
|
65.5°–90° N
|
all
|
|
|
| Ruwa Patera
|
Ji2
|
21.5°–65.5° N
|
0°–90° W
|
Ruwa Patera
|
|
|
Ji3
|
21.5°–65.5° N
|
90°–180° W
|
|
Shango Patera, Amirani, Thor, Zamama
|
|
|
Ji4
|
21.5°–65.5° N
|
180°–270° W
|
|
Thomagata Patera
|
|
|
Ji5
|
21.5°–65.5° N
|
270°–360° W
|
|
Amaterasu Patera, Fuchi Patera, Kinich Ahau Patera, Manua Patera, Dazhbog Patera, Surt
|
|
|
Ji6
|
21.5° N – 21.5° S
|
0°–72° W
|
|
Kanehekili Fluctus
|
|
|
Ji7
|
21.5° N – 21.5° S
|
72°–144° W
|
|
Chaac-Camaxtli region, Monan Patera, Tawhaki Vallis, Ah Peku Patera, Gish Bar Patera, Maui Patera, Tawhaki Patera, Tupan Patera
|
|
|
Ji8
|
21.5° N – 21.5° S
|
144°–216° W
|
|
Chaac-Camaxtli region, Prometheus
|
|
|
Ji9
|
21.5°N – 21.5° S
|
216°–288° W
|
|
Asha Patera, Kami-Nari Patera, Reiden Patera, Pillan Patera, Pele
|
|
|
Ji10
|
21.5° N – 21.5° S
|
288°–360° W
|
|
Loki Patera
|
|
|
Ji11
|
21.5°–65.5° S
|
0°–90° W
|
|
Masubi
|
|
|
Ji12
|
21.5°–65.5° S
|
90°–180° W
|
|
|
|
|
Ji13
|
21.5°–65.5° S
|
180–270° W
|
|
Mithra Patera, Pyerun Patera, Svarog Patera, Egypt Mons, Danube Planum
|
|
|
Ji14
|
21.5°–65.5° S
|
270–360° W
|
|
Babbar Patera, Viracocha Patera, Euboea Montes, Silpium Mons
|
|
|
Ji15
|
65.5°–90° S
|
all
|
|
|
